Q66.9 ICD-10-CM Code: Congenital deformity of feet, unspecified
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
Q66.9Congenital deformity of feet, unspecified
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where Q66.9 sits
- 1
Chapter 17
Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
- 2
Section
Congenital malformations and deformations of the musculoskeletal system (Q65-Q79)
- 3
Category Q66
Congenital deformities of feet
- 4
Code Q66.9
Congenital deformity of feet, unspecified
More specific choices
Codes under Q66.9
Q66.9 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for Q66.9.
Code first
No “code first” instruction is listed for Q66.9.
Use additional code
No “use additional code” instruction is listed for Q66.9.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for Q66.9.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for Q66.9.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code Q66.9 mean?
Q66.9 is the FY 2027 U.S. ICD-10-CM code for “Congenital deformity of feet, unspecified.”
Is Q66.9 a billable or specific ICD-10-CM code?
No. Q66.9 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is Q66.9 located in ICD-10-CM?
Q66.9 is listed in Chapter 17, Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1), within Congenital malformations and deformations of the musculoskeletal system (Q65-Q79) (Q65–Q79), under category Q66, Congenital deformities of feet.
What coding notes are listed for Q66.9?
No inclusion terms are listed for Q66.9 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.
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